Heat-pump water heater

Abstract

The invention discloses a heat-pump water heater. The heat-pump water heater comprises a heat pump host, a water storage tank, a temperature controller sleeve, a temperature controller and an electric heater, wherein the water storage tank comprises an inner container and a shell arranged outside the inner container in a sleeving mode, and a first connector and a second connector are welded to the side wall of the inner container; the temperature controller sleeve is connected to the first connector and extends into the inner container; the temperature controller is inserted into the temperature controller sleeve to detect the water temperature in the inner container; the electric heater is connected to the second connector and extends into the inner container to heat water in the inner container, and the extending direction of the temperature controller is parallel to the extending direction of the electric heater. According to the heat-pump water heater, the temperature controller sleeve can extend into the water storage tank to make direct contact with the water so that the temperature controller can directly measure the water temperature in the inner container, and detection is accurate. In addition, the temperature controller is parallel to the electric heater, and therefore the temperature controller can accurately control on-off of the electric heater, and the water temperature is accurately controlled.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to a heat pump water heater. Background technique [0002] During the operation of the heat pump water heater, it is necessary to control the water temperature, turn on the heating when the temperature is low, and stop the heating when the temperature is high. According to the customer's needs, the electric heater will be added as another heat source system, and a thermostat will be installed in the attachment of the electric heater to achieve precise control of the temperature of the heating water. [0003] In the prior art, most products will install a close-fitting thermostat on the arc barrel wall of the inner tank of the water tank. However, because the cylinder walls of the enamel inner tank are separated, the thermostat cannot achieve accurate temperature control. Contents of the invention [0004] The present invention aims to solve at least one of the technical pro...

AI Technical Summary

Problems solved by technology

[0002] During the operation of the heat pump water heater, it is necessary to control the water temperature, turn on the heating when the temperature is low, and stop the heating when the temperature is high. According to the customer's demand, the electric heater will be added as another heat source system, and a thermostat is installed in the attachment of the electric heater to achieve precise control of the temperature of the heating water

[0003] In the prior art, most products will install a close-fitting thermostat on the arc wall of the inner tank of the water tank. However, because the walls of the enamel inner tank are separated, the thermostat cannot achieve precise temperature control.

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